Nonskid-tire grip



N. 1, LiNDSTROM. NONSKID TIRE GRIP APPLICATION FILED AUGJZ, 19l9.

Patented May 23, 1922.

NILS J. LINDSTROM, OF EVANSVILLE, MINNESOTA.

NOIN'SKID-TIRE GRIP.

Application filed August 12, 1919.

To all whom it may concern:

Be it known that I, llILS J. LrNns'rnoM, a citizen of the United States, residing at Evansville. in the county oi Douglas and State of Minnesota, have invented certain new and useful Improvements in Nonskid- Tire Grips, of which the flollowing is a specification.

My invention relates to an improvement in non-skid tire grips.

The object is to do away with the ordinary chain now used for this purpose and in its stead I propose to employ lugs ot peculiar type extending in pairs around the tire at intervals and connected by an interposed link and having their ends linked to the side chains.

In the accompanying drawings.

Figure 1, is a view in side elevation oi a section oi tire showing my device applied,

Fig u re 2, is a full size view of the device in plan,

Figure 3, is a view in transverse section through a tire showing my improved device applied thereto, and

Figure is a plan view ot one of the lugs.

The lugs A are Preferably just alike and they are generally used in pairs and they consist 0'! channel iron, that is, (it a center and two side flanges l, and one end is preterably cut off square and the other diagonally as shown in Figure 2, and in the center the hole 2. is formed for two main reasons. namely to take a better hold on the tire casing. and to prevent clogging.

Each hip; has a general curve as shown in l igrure 3, in the general shape of the tire.

An S-shaped link connects the lugs in pairs, holes l. being; provided in the flanges 1, to receive the link, and hooks extend through holes (3. in the longer flanges l, and connect the lugs to the side chains 7, as shown in Figures 1. and 3.

The lugs A. are preferably made from carbon steel and tempered, and they are disposed as shown in Figure 2, in order to get the best results. Thus they extend diagonally and they automatically adjust themselves to keep the car from skidding and slipping.

Specification of Letters Patent.

Patented llllay 23, 1922.

Serial No. 316,951.

My improved device will not injure the tire and it will effectually prevent accidents due to skidding. The lugs are so formed that they present a smooth and rounding surface to the tire surtace. thev beingthe only part of the device which coines l1l COntact with the tire.

I claim:

1. A non-skid tire grip lHClL'KllHQ a channel-iron lug having a diagonal end. whereby one of the flanges is of greater length than th other, side chains, and means eiitendinc from the side chains to the o] posite corner; oi the lug.

2. A non-skid tire grip including; two channel-iron lugs having curved backs to substantially conform to the surface of a tire, a llllli: loosely connectingthe corners 0t said lugs together and hooks extending from the diagonally-opposed corners of the lugs to the side chains.

3. A non-skid grip including}; side chains. channel-iron lugs having curved backs to substantially conform to the surface (it a tire, said baclrs having holes therein. an shaped linlr COI111QCtlllf the corner of one luggloosely to the corner of another. and hooks extending from the diagonally opposed outer corners oi lugs to the side i-hains.

4. it non-skid tire grip coni iirisinrr lugs oi channel iron term the side flanires of which are (it ditterent lengths and having at least one diagonal end andv provided with a hole in the center and in each flange, a link connecting the sh ortcr flanges ther. hooks extending through holes in the longer flttllz es and side chains to which these hooks are connected.

5. A non-ski d tire grip including: circumferential side chains, short channel lugs and inc-ans for connecting; them tog ther in series and means connecting the series to the side chains so that the lugs lie diagonally and transversely across the tire with their sharp -ended flanges presented outwardly and the interposed lug connecting: means approximately central oi the wheel tread.

in testimony whereof I my signature.

NILE} J. LINDSTROM. 

